Poststructuralism grew out of postmodernism.

Poststructuralism

An intellectual movement that critiques structures, identities, and binaries established by structuralism, emphasizing the instability of meaning and the complexity of power dynamics.

Postmodernism

An intellectual stance or mode of discourse defined by an attitude of skepticism toward what it describes as the grand narratives and ideologies of modernism, as well as opposition to epistemic certainty and the stability of meaning.

Grew Out

Refers to the process of developing or emerging from a particular origin or set of conditions.